I'm one of those who has a hard time getting rid of the scraps! I have a shelf full of pieces of balsa of the "I could use that some time" variety, a box of plywood scraps, a box for brass strips and tank material, a box for brass and alum tubing, and a couple of boxes of leftover metal scraps from my lathe and mill.
BTW, I still bowl, once a week in the old-folks league from the senior penal colony I live in. I wish I could still bowl the way I remember (or imagine) I could!